Can someone explain, in layman terms, what is Object/relational mapping(ORM) in relation to Hibernate and JDBC?
Diagrams would be especially helpful for understanding...
EDIT: I found this via google for Hibernate ORM, can someone confirm that it is accurate and a good representation of how ORM is used.
ORM allows you to use java objects as representation of a relational database. It maps the two concepts (object-oriented and relational)
Hibernate is an ORM framework - you describe how your objects are represented in your database, and hibernate handles the conversion.
JDBC is the API for database access, and it works "in a relational way" - you query tables and get rows and columns back. Hibernate uses JDBC under the hood to fetch the data and later convert it to objects.
ResultSet has multiple records, and each record has a set of columns. In hibernate this becomes of
SomeClass has a field for every column in the database table, and there is one instance ofSomeClass` per database record.